.border{
    border: 1px solid #ccc;
}
.padding{
    padding:4px 6px;
}
.color{
    color:red;
}
.bg-color{
    background-color:blue;
}
.radius{
    border-radius:6px;
}
.pointer{
    cursor:pointer;
}

.big-box{
    width:200px;
    height:200px;
    background: green;
    display: flex;
    align-items: center;
    justify-content: center;
}
.big-box .mid-box{
    width:100px;
    height:100px;
    background: red;
    display: flex;
    align-items: center;
    justify-content: center;
}
.big-box .mid-box button{
    cursor: pointer;
}

.form{
    margin-top:10px;
    width:200px;
    height:200px;
    background: green;
    display: flex;
    align-items: center;
    justify-content: center;
}